Draft-equalizer.



No-836,142. PATENTED NOV.20,1906.

ninnonmns.

DRAFT EQUALIZER.

APPLIOATION FILED NOV. 9. 1905 @Wfd 6%? 4%? U NITED STATES PATENTOFFICE.

CHARLES L. ROBERTS, OF FOXLAKE, WISCONSIN, ASSIGNOR OF ONE- SIXTEENTH TOJOHN S. ROWELL, ON E-SIXTEENTH TO THEODORE B. ROW ELL, ONE- SIXTEENTH TOSAMUEL W. ROWELL, ONE- SIX- TEENTH TO WILLIAM H. STACY,AND'ONE-SIXTEENTH 'lO BERT S. BARBER, OF BEAVER DAM, WISCONSIN,ONE-SIXTEENTH TO BELLE M. BARBER AND ONE-SIXTEENT H TO LYMAN W. BARBER,OF CHI- CAGO, ILLINOIS, AND ONE SIXTEENTH TO CHARLES H. GANGEL- HOFF, OFMINNEAPOLIS, MINNESOTA.

DRAFT-EQUALIZER.

Specification of Letters Patent.

Patented Nov. 20, 1906.

T0 on whom it may concern:

Be it known that I, CHARLES L. RoBERrs, a citizen of the United States,and a resident of Foxlake, in the county of Dodge and State ofWisconsin, have invented certain new and useful Improvements in Draft-Equalizers and I do hereby declare that the following is a full, clear,and exact description thereof.

My invention consists in certain peculiarities of construction andcombination of parts hereinafter particularly set forth with referenceto the accompanying drawings and subsequently claimed, its object beingto provide simple .economical three-horse draft-equalizers and toprevent side draft.

Figure 1 of the drawings represents a plan view of a three-horsedraft-equalizer in accordance with my invention in connection with adraft-pole, a spreader-bar guide of the equalizer being partly brokenaway Fig. 2, a side elevation of the same, partly in section; and Fig.3, a perspective view illustrating another form of spreader-bar guide inconnection with a fragment of the draftpole.

Referring by letter to the drawings, A indicates a draft-pole, B anequalizer-bar in pivotal connection with the rear end of the pole out ofcenter under the same against a rub-iron; but it is as practical toattach the equalizer-bar over said pole, and in either case it may beconnected farther forward of the same. Link-rods C or other suitabledevices are connected at their rear ends to the ends of theequalizer-bar, and their forward ends are connected to a reciprocativespreader-bar D, for which a guide E is provided in connection with thepole A over or under the same, as may be preferable in practice.

Various means may be employed for con necting the link-rods or theirequivalents to the equalizer-bar and spreader-bar, and said spreader-baris tubular or otherwise, as may be most convenient or desirable, thetubular kind being herein shown.

In Figs. 1 and 2 the spreader-bar guide E is shown as a sleeve swiveledvertically in a carrier F, that has oscillative play longitudinally ofthe pole A in guides G, fast on said pole, the proportions of saidsleeve and the carrier-guides being such. as to resist tipping of saidspreader-bar when there is preponderance of weight of the same and itsattachments on either side of the aforesaid pole.

A doubletree H and swingletree I are connected to the spreader-bar Dadjacent to the ends of the same, and a pair of swingletrees J areconnected to the doubletree.

From the foregoing it will be understood that the spreader-bar is freeto move laterally in either direction and that pro vision is had forswing of said bar, as well as for its free movement longitudinally ofthe pole. These combined movements serve to compensate for inequalitiesin the matter of the draft that comes wholly on the pole, andbeautomatically adjust itself longitudinally and laterally of said polecoincident with its swing side draft is prevented.

In Fig. 3 the spreader-bar guide is shown as a bracket E, fast on thepole and provided with an elongated eye longitudinally of said pole. Thespreader-bar in the eye aforesaid is free to have all the movementsabove described, by which to automatically adjust itself to strains invarious directions, and thus prevent side draft. The bracket is providedwith wings E extending laterally in opposite directions to oppose thespreaderbar and prevent tilt of the same, said wings being either underor over said spreader-bar, as may be most desirable in practice, andsaid bracket may be attached over or under the draft-pole.

I claim 1. A three-horse draft-equalizer comprising the combination ofan equalizer-bar pivotally attachable out of center to a draftpole, aspreader-bar reciprocative longitudinally and transversely of saiddraft-pole on which it has swing play, and means connecting the ends ofthe equalizer-bar with the cause of the freedom of the spreader-bar tospreader-bar; said spreader-bar being for attachment to a doubletree atone end and to a swingletree at its other end.

2. A three-horse draft-equalizer comprising the combinatlon of anequalizer-bar pivotally attachable out of center to a draftpole, a guideattachable to the pole, a spreader-bar reciprocative in the guide, andmeans connecting the ends of the equalizerbar with the spreader-bar;said spreader-bar being for connection at one end with a doubletree andat the other end with a swingletree. v

3. A three-horse draft-equalizer comprising the combination of a carrierfor connection with a draft-pole to oscillate longitudinally of thesame, a guide in swivel connection with the carrier, a spreader-barloose in the guide, an equalizer-bar pivotally attach- .able out ofcenter to the draft-pole, and

means connecting the ends of the equalizerbar with the spreader-bar;said spreader-bar being for connection at one end with a doubletree andat the other end with a swingletree.

4. A three-horse draft-equalizer comprising the combination of guidesattachable to a draft-pole a carrier loose in the guides to oscillatelongitudinally of the pole, a guide in swivel connection with thecarrier, a spreaderbar loose in the swivel-guide, an equalizerbarpivotally attachable out of center to the draft-pole, and meansconnecting the ends of the equalizer-bar with the spreader-bar; said 5.A three-horse draft-equalizer comprising the combination of anequalizer-bar pivotally attachable out of center to a draftpole, anantitilt-guide for connection with the pole, a spreader-barreciprocative in the guide, and means connecting the ends of theequalizer-bar with the spreader-bar; said spreader-bar being forconnection at one end with a doubletree and at the other end with aswingletree.

6. A three-horse draft-equalizer comprising the combination of anequalizer-bar'pivotally attachable out of center to a draftpole, aspreader-bar, means confining the spreader-bar to reciprocationlongitudinally and transversely of said pole without intelference withswing of said spreader-bar, and means connecting the ends of theequalizerbar with the aforesaid spreader-bar; this spreader-bar beingfor connection at one end with a doubletree and at the other end with aswingletree.

In testimony that I claim the foregoing I have hereunto set my hand, atBeaver Dam, in the county of Dodge and State of-Wisconsin, in thepresence of two witnesses.

CHARLES L. ROBERTS.

Witnesses:

E. D. STACY, M. H. BROWER.

